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Lew Hodgett

wrote:

Any recommendations on how to drill a 4" hole in a 1" thick wood
desktop? I havent been able to find any 4" drill bits out there.

As others have mentioned, a 4" hole saw will do the job and if you go
at it the right way, can give you a reasonably clean cut.

A word of WARNING.

Let me repeat that:

W A R N I N G

Don't attempt to use a 4" hole saw with anything but a right angle drill.

Get a 1/2", 2 speed (low speed about 200 RPM) right angle drill.

Try some practice cuts.

That way when the saw grabs the material you're trying to cut, and it
will, you will learn how to react to it without hurting yourself.

Trying to use a straight drill with that large a hole saw is a recipe
for disaster.

You can hurt yourself, especially your wrists and hands.

Lew